K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Constant Velocity Joint Boot: All Technical Service Bulletins
Front Axle Drive Shaft Seal - Wears Out Early
File In Section: 3 - Steering/Suspension
Bulletin No.: 56-33-01A
Date: December, 1995
Subject:
Early Front Axle Front Wheel Drive Shaft Seal Wear-out (Replace Lower Control Arm or Install Seal Cover)
Models:
1988-95 Chevrolet and GMC Truck K Models - Plant Codes Z, 1, E
Built Prior to VIN Breakpoints:
1995 Chevrolet and GMC Truck K Models - Plant Code J
Built Prior to VIN Breakpoints:
This bulletin is being revised to correct the "Models" involved information. Please discard Corporate Bulletin Number 56-33-01 (Section 3 -
Steering/Suspension).
Condition
Some owners of vehicles which operate primarily in off-highway environments may comment on premature wear-out of the front axle seals (front wheel
drive shaft CV boots).
Cause
Off-highway usage can result in the build-up of debris (mud, ice, etc.) on the lower control arm. If the amount of debris is excessive, contact with the
front axle front wheel drive shaft seal may result. The result may be an early wear-out of the seal.
Correction
Important:
Implementation of this bulletin by Canadian dealers on vehicles within warranty period requires prior DSM approval.
K - Models with 8600 # GVW's and Below
